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A network bridge is a computer networking device that creates a single, aggregate network from multiple communication networks or network segments. This function is called network bridging . [ 1 ] Bridging is distinct from routing .
A bridge router or brouter [1] is a network device that works as a bridge and as a router. The brouter routes packets for known protocols and simply forwards all other packets as a bridge would. [2] Brouters operate at both the network layer for routable protocols and at the data link layer for non-routable protocols. As networks continue to ...
Switches for Ethernet are the most common form of network switch. The first MAC Bridge [3] [4] [5] was invented [6] in 1983 by Mark Kempf, an engineer in the Networking Advanced Development group of Digital Equipment Corporation. The first 2 port Bridge product (LANBridge 100) was introduced by that company shortly after.
An example network. The numbered boxes represent bridges, that is switches in a LAN. The number is the bridge ID. The lettered clouds represent network segments. The smallest bridge ID is 3. Therefore, bridge 3 is the root bridge. The root bridge of the spanning tree is the bridge
A campus area network (CAN) is made up of an interconnection of LANs within a limited geographical area. The networking equipment (switches, routers) and transmission media (optical fiber, Cat5 cabling, etc.) are almost entirely owned by the campus tenant or owner (an enterprise, university, government, etc.).
IEEE 802.1ah is an amendment to the IEEE 802.1Q networking standard which adds support for Provider Backbone Bridges.It includes an architecture and a set of protocols for routing over a provider's network, allowing interconnection of multiple provider bridge networks without losing each customer's individually defined VLANs.
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By observing the source addresses of incoming frames, the bridge then builds an address table associating addresses to segments. Once an address is learned, the bridge forwards network traffic destined for that address only to the associated segment, improving overall performance. Broadcast traffic is still forwarded to all network segments ...